Piecewise Tri-linear Contouring for Multi-material Volumes

Powei Feng, Tao Ju, Joe D. Warren
Rice University
Advances in Geometric Modeling and Processing, Lecture Notes in Computer Science, 2010, Volume 6130/2010, 43-56


   title={Piecewise Tri-linear Contouring for Multi-material Volumes},

   author={Feng, P. and Ju, T. and Warren, J.},

   journal={Advances in Geometric Modeling and Processing},





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The ability to model objects composed of multiple materials has become increasingly more demanded in scientific applications. The visualization of a discrete multi-material volume often suffers from voxelization of the boundary between materials. We propose a contouring method that can be efficiently implemented on the GPU to reduce the artifacts and jaggedness along the material boundaries. Our method extends naturally from the standard tri-linear contouring in a signed volume, and further provides sub-voxel accuracy for representing three or more materials.
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